Nonlinear finite element models of reinforced concrete beams strengthened in bending with mechanically fastened aluminum alloy plates

Abuodeh, Omar R.; Hawileh, Rami A.; Abdalla, Jamal A.

doi:10.1016/j.compstruc.2021.106573

Cited by 9 publications

(5 citation statements)

References 28 publications

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“…This element can effectively predict concrete's cracking and crushing phenomenon in three mutually perpendicular directions. This element also comprises plasticity, large deflection, stress stiffening, creep and swelling properties (Wolanski, 2004;Yousaf et al, 2017;Pandimani et al, 2021a, b;Naser et al, 2021;Abuodeh et al, 2021;Hawileh et al, 2013). It is an eight-node hexahedron element with x, y and z translational degrees of freedom (DOF) at each node.…”

Section: Numerical Modelingmentioning

confidence: 99%

“…This expression is advantageous over other models available in the literature, representing the curve's rising and falling branches by a single mathematical equation as depicted in Figure 1(a). The default tri-linear stress-strain curve available in ANSYS is used to define the concrete tensile behavior (Wolanski, 2004;God ınez-Dom ınguez et al, 2015;Naser et al, 2021;Hawileh et al, 2012;Abu-Obeidah et al, 2015;Abuodeh et al, 2021;Nawaz et al, 2016). The tensile curve linearly increases to the maximum tensile strength of concrete and then starts descending linearly to a magnitude of 60% of the tensile strength.…”

Section: Numerical Modelingmentioning

confidence: 99%

“…, 2015; Naser et al ., 2021; Hawileh et al ., 2012; Abu-Obeidah et al. , 2015; Abuodeh et al. , 2021; Nawaz et al ., 2016).…”

Section: Numerical Modelingmentioning

confidence: 99%

“…Several authors have been employed with the numerical package ANSYS to validate their experimentally tested results and further did parametric studies with the verified numerical models (Barour et al ., 2022; Hawileh et al ., 2011; Hawileh, 2012; Jawdhari et al ., 2018; Banjara and Ramanjaneyulu, 2019; Kadhim et al ., 2019; Choobbar et al ., 2019; Hawileh et al. , 2019a, b, 2010, 2013; Abuodah et al ., 2021; Nawaz et al ., 2016; Abu-obeidah et al ., 2015; Naser et al ., 2021). The one-way RC slab with openings was modeled in the ANSYS domain, and the developed models were validated by the past experimental study performed by the authors (Kaya and Anil, 2021).…”

Section: Introductionmentioning

confidence: 99%

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Computational modeling and simulations for predicting the nonlinear responses of reinforced concrete beams

Pandimani¹

2023

MMMS

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PurposeThe ultimate capacity and ductility behavior of a reinforced concrete (RC) beam generally depends on its constituent material properties. This study aims to use ANSYS to accentuate the nonlinear parametric finite element (FE) simulations of RC sections under monotonic loading.Design/methodology/approachThe concrete matrix and steel reinforcement are the primary constituent materials of RC beams. The material properties such as tensile reinforcement area, tensile bars yield strength, concrete compressive strength and strain rate in tensile reinforcement at nominal strength have significantly influenced the ultimate response of RC beams. Therefore, these intensive parameters are considered in this study to ascertain their effect on the RC beam's ultimate behavior. The nonlinear response up to the ultimate load capacity and the crack evolutions of RC beams are predicted efficiently.FindingsThe parametric study reveals that increasing the tensile steel reinforcements (from Ast = 213–857 mm2) significantly improves the ultimate load capacity by 229% and yield deflections by 20%. However, it declines the ultimate deflection by 47% and ductility by 56% substantially. Varying the strain limit (?tn = 0.010–0.0015) of tensile reinforcement has proficiently increased the ultimate load-resisting capacity by 20%, whereas the ductility declined by 62%. When the concrete strength increases (from fck = 25–65 MPa), the cracking load increases profoundly by 51%, whereas the ultimate capacity has found an insignificant effect.Originality/valueThe load-deflection response plots extracted from the proposed numerical model exhibit satisfactory accuracy (less than 9% deviation) against the experimental curves available in the literature, which emphasizes the proficiency of the proposed FE model.

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Section: Numerical Modelingmentioning

confidence: 99%

Section: Numerical Modelingmentioning

confidence: 99%

“…, 2015; Naser et al ., 2021; Hawileh et al ., 2012; Abu-Obeidah et al. , 2015; Abuodeh et al. , 2021; Nawaz et al ., 2016).…”

Section: Numerical Modelingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Computational modeling and simulations for predicting the nonlinear responses of reinforced concrete beams

Pandimani¹

2023

MMMS

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“…To create a new technique that can replace steels and alloys with one that is dependable, affordable, and easy to use, extensive research has been done in this area [8,9]. Therefore, using externally bonded (EB) fiber-reinforced polymer (FRP) sheets in concrete structures as a means of strengthening and retrofitting has received widespread acceptance in the industries [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Flexural Behavior of RC Beams Strengthened with GFRP Laminate and Retrofitting with Novelty of Adhesive Material

Rageh¹,

El-Mandouh

Elmasry³

et al. 2022

Buildings

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Two unique approaches were proposed to strengthen the bond between the glass fiber reinforcement polymer (GFRP) and the RC concrete surfaces. The two bonding materials are epoxy (EP) and geopolymer (GPP) with different ratios of short glass fibers (SGF). The experimental program includes seven reinforced concrete (RC) beams that have the same cross-section (150 mm × 200 mm) and are 1500 mm in length. The first beam is the control beam (B0-Control). The next three beams B1-0-GPP, B2-0.6-GPP, and B3-1.2-GPP have GPP with SGF ratios of 0%, 0.6%, and 1.2%, respectively. The last three beams B4-0-EP, B5-0.6-EP, and B6-1.2-EP have EP with SGF ratios of 0%, 0.6%, and 1.2%, respectively. The results show that the failure loads of beams B1-0-GPP, B2-0.60-GPP, and B3-1.2-GPP are greater than the control beam B0-Control by approximately 20.80%, 25.60%, and 31.40%, respectively, whereas the failure loads of beams B4-0-EP, B5-0.6-EP, and B6-1.2-EP are greater than the B0-Control by approximately 16.90%, 26.90%, and 26.10%, respectively; it is also noted that debonding occurs. In addition to the adhesive material, GPP has a great effect on increasing the beam’s failure load capacity due to the enhanced interfacial bond shear strength. Additionally, a finite-element program ABAQUS is performed to verify the experimental results.

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Prediction of the seismic behavior of concrete beams strengthened with aluminum alloy bars and/or basalt fiber‐reinforced polymer bars

Xing

Haonan

Chang

et al. 2021

Structural Design Tall Build

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This paper investigated the seismic performance of reinforced concrete (RC) beams strengthened with aluminum alloy (AA) rods and/or basalt fiber-reinforced polymer (BFRP) rods using the near-surface mounted (NSM) technique under a low-cycle reversed loading test. A numerical calculation procedure was presented based on the strain compatibility and static equilibrium principles for estimating the momentcurvature response of these strengthened beams. The bending deflection and shear deflection were determined by the curvature distribution and shear strain distribution along the beam length, respectively. The results showed that the strengthened beams experienced three failure modes: intermediate crack-induced debonding (ICD), critical diagonal crack (CDC) debonding, and concrete cover separation (CCS). Increasing the number of strengthening bars on each side significantly enhances the load-carrying capacity of the beams strengthened with either AA or BFRP bars. The predictive accuracy of the proposed methodology was evaluated by comparing the predicted load-carrying capacities and deflections to the test characteristic points. The proposed theoretical model provided good verification of the load-carrying capacities and deflections with high accuracy.

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Nonlinear finite element models of reinforced concrete beams strengthened in bending with mechanically fastened aluminum alloy plates

Cited by 9 publications

References 28 publications

Computational modeling and simulations for predicting the nonlinear responses of reinforced concrete beams

Computational modeling and simulations for predicting the nonlinear responses of reinforced concrete beams

Flexural Behavior of RC Beams Strengthened with GFRP Laminate and Retrofitting with Novelty of Adhesive Material

Prediction of the seismic behavior of concrete beams strengthened with aluminum alloy bars and/or basalt fiber‐reinforced polymer bars

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